“Like you’re drinking out of a fire hose”

Guard Tony Bergstrom and linebacker Miles Burris described their first two days of rookie mini-camp as feeling like “you’re drinking out of a fire hose.”

The three-day flood course concludes Sunday. There were 60 players on hand, including 30 trying out for the team, and then the draft picks, undrafted free agents and select others will join veterans Monday when organized team activities start.

“The rookies are obviously behind from a mental and a physical standpoint,” Raiders coach Dennis Allen said. “They’re going to have to work hard and work fast to get caught up because if they don’t get caught up pretty soon they’ll fall behind. It’s real important to have this camp for them.”

The players get a welcome playbook, which only gets bigger the more systems and plays that are installed.

“It’s pretty crazy,” said Bergstrom, the team’s third-round pick out of Utah. “It’s a lot of mental gymnastics out there. They’re throwing everything at you at once. You’re coming out here and you’re trying to pick it up against movement and all sorts of defensive fronts. … Things will start to slow down in a couple of days once this minicamp gets over.”

Under the collective bargaining agreement, there is no pads and no contact.

“We’re just seeing if guys can think and progress from Day 1 to Day 2,” new offensive line coach Frank Pollack said. “And see how they compete within the framework which we’re allowed to compete in.”

Receiver Eddie McGee and tight end Andre Hardy were working on the side due to injury. The recently-signed Hardy is a converted basketball player from Cal-State Fullerton.